html {
    box-sizing: border-box;
}

*,
*::before,
*::after {
    box-sizing: inherit;
}

html,
body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    background: #ffffff url('../img/light-winter.jpeg');
    font-family: 'Coda', cursive;
    color: #393939;
}

.container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

h1 {
    font-family: 'Arial', sans-serif;
    font-weight: 300;
}

/*
 * Styles for the deck of cards
 */

.deck {
    width: 660px;
    min-height: 680px;
    background: linear-gradient(160deg, #02ccba 0%, #aa7ecd 100%);
    padding: 32px;
    border-radius: 10px;
    box-shadow: 12px 15px 20px 0 rgba(46, 61, 73, 0.5);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    margin: 0 0 3em;
    list-style-type: none;
}

.deck .card {
    height: 125px;
    width: 125px;
    background: #2e3d49;
    font-size: 0;
    color: #ffffff;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 5px 2px 20px 0 rgba(46, 61, 73, 0.5);
}

.deck .card.open {
    transform: rotateY(0);
    background: #02b3e4;
    cursor: default;
}

.deck .card.show {
    font-size: 33px;
}

.deck .card.match {
    cursor: default;
    background: #02ccba;
    font-size: 33px;
}

.deck .card.wrong {
    background: #fa5050;
}

/*
 * Styles for the Score Panel
 */

.score-panel {
    text-align: left;
    width: 545px;
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
}

.score-panel .stars {
    margin: 0;
    padding: 0;
    display: inline-block;
    margin: 0 5px 0 0;
    color: #ffcd00;
}

.score-panel .stars li {
    list-style-type: none;
    display: inline-block;
}

.score-panel .restart {
    cursor: pointer;
}

#restart i {
    padding-left: 5px;
}

#timer {
    display: inline-block;
}

#timer-text {
    color: #058A8c;
}

#restart-text {
    color: #764F92;
}

/* Winning Popup */
.popup {
    display: none;
    position: fixed;
    z-index: 1;
    padding-top: 0;
    margin: 0 auto;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgb(0,0,0);
    background-color: rgba(0,0,0,0.4);
}

.popup-content {
    background-color: white;
    margin: 0 auto;
    height: 100%;
    width: 100%;
    padding: 20px;
    text-align: center;
    font-family: 'Helvetica';
    -webkit-animation-name: animatetop;
    -webkit-animation-duration: 1.5s;
    animation-name: animatetop;
    animation-duration: 1.5s;
}

/* Add Animation */
@-webkit-keyframes animatetop {
    from {top: -300px; opacity: 0}
    to {top: 0; opacity: 1}
}

@keyframes animatetop {
    from {top: -300px; opacity: 0}
    to {top: 0; opacity: 1}
}

.popup-content h1 {
    font-size: 3em;
    padding-top: 4em;
    color: #18bf8f;
    font-weight: bolder;
}

.popup-content h3 {
    font-weight: normal;
    color: #4f4f4f;
}

#play-again-btn {
    background-color: #8c4ed6;
    color: white;
    font-size: 16px;
    font-weight: normal;
    padding: 10px 25px;
    border: none;
    border-radius: 8px;
    margin-top: 15px;
    box-shadow: 7px 7px 30px #999999;
    transition: box-shadow 0.5s;
}

#play-again-btn:hover {
    box-shadow: 3px 3px 8px #6F6F6F;
    background-color: #9759E3;
    cursor: pointer;
}

#star-rating-text {
    padding-left: 15px;
}

/* The Close Button */
.close {
    color: #aaaaaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close:hover,
.close:focus {
    color: #000;
    text-decoration: none;
    cursor: pointer;
}

/*
 * Media queries
 */

@media only screen and (max-width: 780px) {
    .deck {
        max-width: 300px;
        min-height: auto;
        padding-bottom: 17px;
    }

    .deck .card {
        height: 50px;
        width: 50px;
        margin-bottom: 17px;
    }

    .score-panel {
        max-width: 70%;
        padding-bottom: 0;
        display: block;
        text-align: center;
        line-height: 1.7em;
    }

    h1 {
        margin: 0;
        padding: 10px 0;
    }
}

#win-popup.zoomIn {
    animation-delay: 1s;
}

/* Animation by theappguruz.com */
#win-popup.zoomIn {
    -webkit-animation-name: zoomIn;
    animation-name: zoomIn;
    -webkit-animation-duration: 1s;
    animation-duration: 1s;
    -webkit-animation-fill-mode: both;
    animation-fill-mode: both;
}
@-webkit-keyframes zoomIn {
    0% {
        opacity: 0;
        -webkit-transform: scale3d(.3, .3, .3);
        transform: scale3d(.3, .3, .3);
    }
    50% {
        opacity: 1;
    }
}
@keyframes zoomIn {
    0% {
        opacity: 0;
        -webkit-transform: scale3d(.3, .3, .3);
        transform: scale3d(.3, .3, .3);
    }
    50% {
        opacity: 1;
    }
}

.deck .card.flipInY {
    -webkit-backface-visibility: visible !important;
    backface-visibility: visible !important;
    -webkit-animation-name: flipInY;
    animation-name: flipInY;
    -webkit-animation-duration: 1s;
    animation-duration: 1s;
    -webkit-animation-fill-mode: both;
    animation-fill-mode: both;
}
@-webkit-keyframes flipInY {
    0% {
        -webkit-transform: perspective(400px) rotate3d(0, 1, 0, 90deg);
        transform: perspective(400px) rotate3d(0, 1, 0, 90deg);
        -webkit-transition-timing-function: ease-in;
        transition-timing-function: ease-in;
        opacity: 0;
    }
    40% {
        -webkit-transform: perspective(400px) rotate3d(0, 1, 0, -20deg);
        transform: perspective(400px) rotate3d(0, 1, 0, -20deg);
        -webkit-transition-timing-function: ease-in;
        transition-timing-function: ease-in;
    }
    60% {
        -webkit-transform: perspective(400px) rotate3d(0, 1, 0, 10deg);
        transform: perspective(400px) rotate3d(0, 1, 0, 10deg);
        opacity: 1;
    }
    80% {
        -webkit-transform: perspective(400px) rotate3d(0, 1, 0, -5deg);
        transform: perspective(400px) rotate3d(0, 1, 0, -5deg);
    }
    100% {
        -webkit-transform: perspective(400px);
        transform: perspective(400px);
    }
}
@keyframes flipInY {
    0% {
        -webkit-transform: perspective(400px) rotate3d(0, 1, 0, 90deg);
        transform: perspective(400px) rotate3d(0, 1, 0, 90deg);
        -webkit-transition-timing-function: ease-in;
        transition-timing-function: ease-in;
        opacity: 0;
    }
    40% {
        -webkit-transform: perspective(400px) rotate3d(0, 1, 0, -20deg);
        transform: perspective(400px) rotate3d(0, 1, 0, -20deg);
        -webkit-transition-timing-function: ease-in;
        transition-timing-function: ease-in;
    }
    60% {
        -webkit-transform: perspective(400px) rotate3d(0, 1, 0, 10deg);
        transform: perspective(400px) rotate3d(0, 1, 0, 10deg);
        opacity: 1;
    }
    80% {
        -webkit-transform: perspective(400px) rotate3d(0, 1, 0, -5deg);
        transform: perspective(400px) rotate3d(0, 1, 0, -5deg);
    }
    100% {
        -webkit-transform: perspective(400px);
        transform: perspective(400px);
    }
}

.deck .card.shake {
    -webkit-animation-name: shake;
    animation-name: shake;
    -webkit-animation-duration: 1s;
    animation-duration: 1s;
    -webkit-animation-fill-mode: both;
    animation-fill-mode: both;
}
@-webkit-keyframes shake {
    0%, 100% {
        -webkit-transform: translate3d(0, 0, 0);
        transform: translate3d(0, 0, 0);
    }
    10%, 30%, 50%, 70%, 90% {
        -webkit-transform: translate3d(-10px, 0, 0);
        transform: translate3d(-10px, 0, 0);
    }
    20%, 40%, 60%, 80% {
        -webkit-transform: translate3d(10px, 0, 0);
        transform: translate3d(10px, 0, 0);
    }
}
@keyframes shake {
    0%, 100% {
        -webkit-transform: translate3d(0, 0, 0);
        transform: translate3d(0, 0, 0);
    }
    10%, 30%, 50%, 70%, 90% {
        -webkit-transform: translate3d(-10px, 0, 0);
        transform: translate3d(-10px, 0, 0);
    }
    20%, 40%, 60%, 80% {
        -webkit-transform: translate3d(10px, 0, 0);
        transform: translate3d(10px, 0, 0);
    }
}

.deck .card.bounceIn {
    -webkit-animation-name: bounceIn;
    animation-name: bounceIn;
    -webkit-animation-duration: .75s;
    animation-duration: .75s;
    -webkit-animation-duration: 1s;
    animation-duration: 1s;
    -webkit-animation-fill-mode: both;
    animation-fill-mode: both;
}
@-webkit-keyframes bounceIn {
    0%, 20%, 40%, 60%, 80%, 100% {
        -webkit-transition-timing-function: cubic-bezier(0.215, 0.610, 0.355, 1.000);
        transition-timing-function: cubic-bezier(0.215, 0.610, 0.355, 1.000);
    }
    0% {
        opacity: 0;
        -webkit-transform: scale3d(.3, .3, .3);
        transform: scale3d(.3, .3, .3);
    }
    20% {
        -webkit-transform: scale3d(1.1, 1.1, 1.1);
        transform: scale3d(1.1, 1.1, 1.1);
    }
    40% {
        -webkit-transform: scale3d(.9, .9, .9);
        transform: scale3d(.9, .9, .9);
    }
    60% {
        opacity: 1;
        -webkit-transform: scale3d(1.03, 1.03, 1.03);
        transform: scale3d(1.03, 1.03, 1.03);
    }
    80% {
        -webkit-transform: scale3d(.97, .97, .97);
        transform: scale3d(.97, .97, .97);
    }
    100% {
        opacity: 1;
        -webkit-transform: scale3d(1, 1, 1);
        transform: scale3d(1, 1, 1);
    }
}
@keyframes bounceIn {
    0%, 20%, 40%, 60%, 80%, 100% {
        -webkit-transition-timing-function: cubic-bezier(0.215, 0.610, 0.355, 1.000);
        transition-timing-function: cubic-bezier(0.215, 0.610, 0.355, 1.000);
    }
    0% {
        opacity: 0;
        -webkit-transform: scale3d(.3, .3, .3);
        transform: scale3d(.3, .3, .3);
    }
    20% {
        -webkit-transform: scale3d(1.1, 1.1, 1.1);
        transform: scale3d(1.1, 1.1, 1.1);
    }
    40% {
        -webkit-transform: scale3d(.9, .9, .9);
        transform: scale3d(.9, .9, .9);
    }
    60% {
        opacity: 1;
        -webkit-transform: scale3d(1.03, 1.03, 1.03);
        transform: scale3d(1.03, 1.03, 1.03);
    }
    80% {
        -webkit-transform: scale3d(.97, .97, .97);
        transform: scale3d(.97, .97, .97);
    }
    100% {
        opacity: 1;
        -webkit-transform: scale3d(1, 1, 1);
        transform: scale3d(1, 1, 1);
    }
}